I'd probably buy it if I saw it for $350.

Here's a neat one.
baltimore.craigslist.org link

That's actually a timer. You push in the coin slide and it moves the lever and activates the timer. Once the time is up the game shuts off.

It's been awhile since I've seen one set up like this but it looks to be missing a set of switches or at least some wiring. Maybe some one made a free play mod. Did you try pushing in the timer to see if it springs to life?

It's possible the timer is bypassed. If I remember right you put your nickel in and push in the slide, the slide presses the timer lever and gives power to the game. I'm not entirely sure if it also activates the start sequence. You play your game and when 5 balls are in the trough your done. Usually pretty quickly on this era. Of course you can still flip the flippers and the playfield is live but no more balls means game over. After a few minutes the time runs out and it cuts power to the game. In theory you could have an epic game and have the time run out before your done but that never happened on the Genco I owned.

Yeah, that must simulate the fast ball!